Let \alpha_1 and \alpha_2 be the ordinates of two points A and B on a parabola y^2=4 ax and let \alpha_3 be the ordinate of the point of intersection of its tangents at A and B. Then \alpha _3-\alpha _ 2 =

AP EAMCET Engineering 2018 Apr 22 Shift 2 Paper

Section: Mathematics

Question : 55 of 160

Marks: +1, -0

Let α1 and α2 be the ordinates of two points A and B on a parabola y2=4ax and let α3 be the ordinate of the point of intersection of its tangents at A and B. Then α3−α2=

α3−α1
α3+α1
α1
α1−α3

Validate

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